In case you somehow needed more evidence that the Pixel 3 and 3 XL are happening (and that there is not a mythical 'backup' 3 XL with no notch), both devices have now been certified by the FCC. The online documents don't reveal much that hasn't already been spoiled, but there are a few interesting details that appear to be new.

The device with FCC ID 'A4RG013A' is likely the small Pixel 3, and 'A4RG013C' is the Pixel 3 XL. The list of supported frequencies shows that both GSM and CDMA networks are supported, including T-Mobile's new 'Extended Range LTE' - Band 12 (700MHz) and Band 71 (600MHz).